Stanford University is holding a study on the results of topography-guided LASIK surgery for myopia (nearsightedness) and myopic astigmatism. Researchers will compare the preoperative and postoperative anterior segment optical coherence tomography epithelial thickness maps after surgery at one month, three months, six months, and twelve months. They hope comparing these maps will show how UDVA and CDVA improve.
There is an estimated enrollment of 35 participants. Researchers will monitor:
- Changes in corrected visual acuity
- Uncorrected distance visual acuity
- Quality of Vision via questionnaire
- Percentage of eyes within +/-0.25, 0.50 and 1.00 diopter of the intended correction
- Contrast visual acuity
- Residual astigmatism levels after surgery
- Change in spherical equivalent over time.
All sexes, ages 18 to 59 years old, are allowed to participate. To be included in the study, participants must have:
- Healthy eyes
- Nearsightedness between -0.50 diopters and -8.00 diopters.
- Up to 3.00 diopters of astigmatism.
- A spherical equivalent of up to -9.00 diopters
Those now allowed to participate are subjects who have:
- Excessively thin corneas.
- Topographic evidence of keratoconus.
- Ectatic eye disorders.
- Autoimmune diseases.
- Who are pregnant or nursing.
- More than 3.00 diopters of astigmatism
Those interested may participate in this study at Byers Eye Institute at Stanford in Palo Alto, California, 94303. Feel free to contact Linda Schwartz at 650 498-7020 with any questions or concerns.
This clinical trial is sponsored by Stanford University. The Principal Investigator is Edward E. Manche.
Clinical TrialsView All Clinical Trials
Study of Dark Adaptation in Age-Related Macular Degeneration
In this clinical trial, investigators are trying to see how effective dark adaptation protocol is in identifying…
OCT Biomarkers for Diabetic Retinopathy
In this study, investigators are seeing if standard optical coherence tomography (OCT) might be useful for…
Eyelash Prostheses vs. Lifitegrast BID for Dry Eye Disease
In this study, investigators are looking at the safety and efficacy of eyelash prostheses compared to 5.0%…
Visual Function Tests in Age-Related Macular Degeneration
This study is looking to assess visual function tests in people with non-exudative age-related macular degeneration…
Senofilcon A Lenses in Moderate to Severe Dry Eye Disease
In this clinical trial, investigators are studying how Senofilcon A daily contact lenses affect the treatment of…
Trifocal Intraocular Lens Aberrometry Outcomes
Weill Medical College of Cornell University is holding a clinical trial on trifocal intraocular lens (IOL)…
Binocular Vision Anomalies After Cataract and Refractive Surgery
Salus University is holding a study on binocular vision disorders after cataract and corneal refractive surgery.…
Prophylactic Treatment: Lessdrops vs Standard Drops Regimen
Carolina Eyecare Physicians, LLC is holding a study on preventing inflammation and infection after cataract surgery…